Territory



(No Model.)

J. KNOO-HE. WATER HEATING APPARATUS. No. 404,915.

Patented June 11, 1889.

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UNITED STATES ATENT Fries.

I JOHN KN OCHE, OF HELENA, MONTANA TERRITORY.

WATER-HEATING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 404,915, dated June 11, 1889.

Application filed January 17, 1889. Serial No. 296,672. (No model.)

To all whom, it may concern:

Be it known that I, JOHN KNOOHE, a citizen of the United States, and a resident of Helena, in the county of Lewis and Clarke and Territory of Montana, have invented certain new an d useful Improvements in ater-Heating Apparatus, of which the following is a specification.

My invention relates to water-heating apparatus for domestic purposes, and particularly to the connections between the heatingtank and the stove or range. Its object is to provide a cheap and reliable means to prevent the water in the pipes connecting the heating-coils to the tank from freezing during the night or whenever the fire in the range is allowed to die out, and this object is accomplished by providing suitable supply and cutoff cocks, and connections to actuate the same either automatically or by hand, to connect or disconnect the tank and heating-pipes, when desired.

The invention will be first fully described in connection with the accompanying drawings, and will then be particularly referred to and pointed out in the claims.

In the drawings, Figure 1 is a view, partly in elevation and partly in vertical transverse section, of part of a water-tank and the firebox of a range, with the water-connections between the fire-box and the tank con structcd according to my invention. Fig. 2 is a sectional detail view, upon an enlarged scale, of one of the valve-rod connections.

Referring to the parts, A is the water-tank, and B the fire-box. These are of ordinary construction, and need not be specifically described. The pipes for supplying the water from any suitable source of supply and for emptying the tank for cleansing it are to be connected in the usual manner, and are consequently not illustrated in the accompany ing drawings.

As my invention is limited to the heating apparatus and the connections between it and the tank, the description will be confined to these particular features.

The heating-coil O, which is located within the fire-box, may be formed of any suitable number of coils. The opposite terminals of this coil extend outside of the fire-box, the lower one to connect with a pipe D, which leads to the lower part of the tank, and through which the colder water is inducted to the heating-coil, and the upper to connect with a curved pipe E, through which the heated water passes into the tank. The ends of both pipes D and E which connect with the tank are fitted with cone-shaped valves F, the seats of which are rubber gaskets f or other yielding material, the said valves being arranged to open into the tank. The valved ends of these pipes D and E are screwed into flange-plates A, which are secured to the tank in the usual manner. Each of the pipes D and E has branches (1 cl 6 e in the same axial line, within which are fitted crank-shafts, by which thevalves F are opened and closed. These valve-actuating shafts G are journaled in caps H I, the inner cap 11 being screwed over the ends of the branches d e, and the caps or screw-plugs I being screwed within the ends of the branches (1' e. Upon the inner ends of the shafts G are disks g, which are fitted within the branches (Z d e e. The disks g are connected by eccentric-pins g,

upon which is fitted the strap-box J of the valve-rods j. Around the ends of shafts G, within the branches d e, is a packing g Upon the adjacent ends of the shafts G is secured a crank-handle K, by turning which the valves are simultaneously opened or closed.

In the upper plug I is an air-cock z, and in the lower plug is a waste-cock 1", both of which are open. when the valves F are closed, and closed when the valves are open. The purpose of this arrangement is to empty the coil 0 and pipes D E when the valves F are closed to shut off the water from the coil 0 and pipes D E, so as to prevent the water in the water-coil and its connectingpipes from freezing during the night or when there is no fire in the fire-box B.

The device as so far described requires attention to turn on or oif the water from the coil and pipes. In the position shown the water is turned off, but by turning the handle K around a half-revolution, or until it is brought nearest the tank, the connection between the coil and tank is opened and the vent and waste cocks closed; but I have also provided means by which the connection between the tank and-heating-coil is automatically opened by the lire in the box 13 and autoinatically closed when the fire dies out, which I will now describe.

Around the lower pipe of the heater is a closely-coiled spring L, one end of which is secured to the coil. The opposite end extends up, is bent at a right angle, extends outside of the fire-box, and is connected to a link on, which is pivoted upon a stud-pin m. A rod M connects the upper end of link m and the crank-handle K. In the View shown the valves are drawn to their closed position. So soon as a lire is kindled in the box B the spring L expands by the heat and turns the handle K, opening the valves, and holding them open so long as the fire is kept up. So soon as the fire dies out, the spring contracts and closes the valves, at the same time opening the vent-cock z' and Waste-cock 1i, and emptying the pipes and coil, so there is no danger of bursting from freezing.

I claim 1. The combination of the tank and heating-coil, the pipes D E, connecting the same and having branches (Z (Z c e, the crankshafts G, titted within said branches, the packing around the ends of said shafts, the

crank-handle K, secured on the said shafts G, between the pipes D E, substantially as and for the purpose set forth.

3. The combination of the tank, the heating-coil, and pipes connecting them, with valves controlling the supply from the tank to the coil, crank-shafts for actuating said valves, a crank-handle connecting said shafts, and the rod M, link m, and coiled spring L, to automatically operate said handle by the expansion and contraction of the said spring, as set forth.

JOHN KNOCII'E.

Vitnesses:

I". A. PAnsoNs, KATIE PARSONS. 

